Just unplug the upstairs sub when not in use.I have a Sony HT-RT5 sound system with wireless subwoofer. I liked it and bought a second system for upstairs.
The problem is when the downstairs tv is on the subwoofer on the upstairs system turns on and starts booming even if the upstairs tv is turned off.
Is there a way to prevent this from happening i.e. to associate each of the subwoofers with only its particular soundbar?
Or buy one of these.